Pressure-sensitive magnetic transfer recording medium

Details Pressure-sensitive magnetic transfer recording medium Pressure-sensitive magnetic transfer recording medium

1998-05-13

2000-08-08

Schwartz, Pamela R.

Stock material or miscellaneous articles

Composite

Of carbohydrate

428195, 428206, 428329, 428694B, B41M 526

Patent

active

06099973&

ABSTRACT:
A pressure-sensitive magnetic transfer recording medium comprising a support and a pressure-sensitive transferable magnetic ink layer provided on the support, the pressure-sensitive transferable magnetic ink layer comprising a particulate magnetic substance, a resin and an oily substance, the resin comprising a cellulose acetate butyrate resin having a number average molecular weight of 2.0.times.10.sup.4 to 5.0.times.10.sup.4 and a glass transition point of 100.degree. to 140.degree. C., the oily substance being compatible with the cellulose acetate butyrate resin, and the mixing ratio of the cellulose acetate butyrate to the oily substance being from 3:10 to 7:5 by weight, wherein the oily substance is at least one member selected from the group consisting of an adipic acid ester, a sebacic acid ester, an azelaic acid ester and a trimethylolpropane fatty acid triester.

REFERENCES:
patent: 3515590 (1970-06-01), Lazzarini
patent: 4211826 (1980-07-01), Du
patent: 4260664 (1981-04-01), Dapp
patent: 5523167 (1996-06-01), Hunt
patent: 5712045 (1998-01-01), Miyai
WPI Database, Section Ch, Week 9722, Derwent Publications Ltd., London, GB; Class A89, AN 97-238959, XP002076728 and JP 09 052438 A (Fujicopian Co. Ltd.); Feb. 25, 1997.

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